   "turn a list datomic entity ids to batches of the given size.
   attach some metadata for debugging"
   ([eids] (make-batches 500 nil))
-  ([eids batch-size order-info]
+  ([batch-size order-info eids]
    (->> eids
         (sort)
         (partition batch-size batch-size [])

    (do
      (http/put index-url {:headers {:content-type "application/json"}
                           :body (json/generate-string index-settings)})
      (let [eids (get-eids-by-type db :go-term/id)
            n-max (dec (count eids))
            batch-size 1000
            jobs (make-batches eids batch-size nil)
            n-threads 4
            scheduler (chan n-threads)]
        (dotimes [i n-threads]
          (go
            (loop []

                  (run-index-batch db job)
                  (recur))
                ))))

        (do
          ;; add jobs to scheduler in sequence
          (let [eids (get-eids-by-type db :go-term/id)
                jobs (make-batches 1000 :go-term eids)]
            (doseq [job jobs]
              (>!! scheduler job)))
          ;; close the channel to indicate no more input
          ;; existing jobs on the channel will remain available for consumers
          ;; https://clojure.github.io/core.async/#clojure.core.async/close!
          (close! scheduler))
        ))))

